David S. Ludwig and Mark I Friedman, writing for the New York Times:
In addition, the food industry — which makes enormous profits from highly processed products derived from corn, wheat and rice — invokes calorie balance as its first line of defense. If all calories are the same, then there are no bad foods, and sugary beverages, junk foods and the like are fine in moderation. It’s simply a question of portion control. The fact that this rarely works is taken as evidence that obese people lack willpower, not that the idea itself might be wrong.
Long on conspiracy theory, but short on actionable advice.
Still, the premise is probably sound.